Safety authentication method and device for unmanned driving

The invention belongs to the technical field of safety certification, and discloses a safety certification method and equipment for unmanned driving. The method comprises the following steps: a client obtains a ciphertext message and a plaintext message; encrypting the ciphertext message and the random non-duplicate number according to the symmetric key to obtain a target ciphertext message; extracting a first abstract from the target ciphertext message and the plaintext message through a preset Hash algorithm; encrypting the first abstract according to the client private key through a preset encryption algorithm to obtain a target abstract; and sending the target ciphertext message, the plaintext message and the target abstract to a server, so that the server performs security authentication according to the target ciphertext message, the plaintext message and the target abstract. Through the mode, the transmitted messages are distinguished, and only data with high privacy requirements are subjected to ciphe